import re
import requests
import os
from bs4 import BeautifulSoup
os.makedirs('./big_image/',exist_ok=True)

url = ''
html = requests.get(url).text
print(html)
soup = BeautifulSoup(html, features='lxml')
picture = soup.find_all('a',{'class':'bigImage'})
for i in picture:
    big_picture = i.find_all('img')
    big_picture = big_picture[0]
    title = big_picture['title']+'.jpg'
    big_picture = 'https:'+big_picture['src']
    save_file = requests.get(big_picture,stream=True)
    with open('./big_image/%s'%title,'wb') as file:
        for chunk in save_file.iter_content(chunk_size=128):
            file.write(chunk)
        print('successful !')
